While looking through /proc/[PID]/fd/
folder of various processes, I found curious entry for dbus
lrwx------ 1 root root 64 Aug 20 05:46 4 -> anon_inode:[eventpoll]
Hence the question, what are anon_inode
s ? Are these similar to anonymous pipes ?
Best Answer
Everything under
/proc
is covered in theman proc
. This section coversanon_inode
.For more on
epoll
I discuss them here - What information can I find out about an eventpoll on a running thread?.For additional information on
anon_inode
's - What is an anonymous inode in Linux?. Basically there is/was data on disk that no longer has a filesystem reference to access it. Ananon_inode
shows that there's a file descriptor which has no referencing inode.